Double-gang soil packer and mulsher.



` n. E. DUNHAM. DOUBLE GANG SOIL PACKEILAND MULSMEI?` APPLICATIGII FILED JUNE 11| HIB.

.Patented Dw.1s,1917. t

2 SMIETB-BIIEET I.

ad@ l 6&1

B. E. DUNHAM. DOUBLE GANG SOIL PACKER AND MULSHE'R.

marmol msn 1uns'11.| 915/ 1,250,570. f y 11mm 1m 18,1917.

2 SHEETS-SHEET 2.

\` will be" economical l the machine.

' of the sprocket-wheels.

UNITED STATES PATENT oEEroE.

BAY E. IDUNHAM, OF BEREA, OHIO, ASSIGNOR TO THE DUNIIAM COMPANY, OF BEBE@ OHIO, A CORPORATION OF OHIO.

DOUBLE-GANG SOIL PACKER AND MULSHER.

Specification of Letters Patent.

Patented Deo. 18. 1917.

Application led I une 17, 1915. Serial N o. 34,714.

Ohio, have mvented anew and useful Improvement in Double-Gang Soil Packers and Mulshers, of which the following 1s a specification, the principle of the invention being herein explained and the best mode in"v which I have contemplated applying that rinciple, so as to distinguish it from other inventions. v My invention relates to cultivating machines, and particularly that class of such machines which is known as packers and mulsher's, its object being to provide a Ina-- chine'of the aboveenamedcharacter which of man pfacture and eilicient in its use. y

A specific object is to provide a structure whereby by a simple rearrangement of parts, different operations may be performed and hence different results obtained, as may be required.

he said invention consists of means hereinafter fully described and particularly set forth' in the claims. Y

The annexed drawings and the following description set forth in detail certain means a embodying my invention, the disclosed means, however, constituting but one of various mechanical forms in which the prin ciple of the invention maybe` applied.

Figure 1 represents a plan, Vwith parts broken away, of va device embodying my in. vention, showing a section of soil in connection therewith andillustr'ating the surface and character `imparted to the soil after having been operated upon by the device.

Fig. 2 represents a plan, with parts brokenl away,rshowin g the parts re-a'rranged to produce a different result, together with a plan of a portion oi' soil. which has just been operated upon by the machine so rearranged. Figf represents a, fragmentary plan of Fig. 4 represents a side elevation of onex section of one of the gangs of wheels.

Fig. 6 represents aside elevation of the complete device embodying'my invention.

The general form of the illustrated deviceV embodying my invention, is old' and in# Fig. 5 represents a fragmentary axial' cludes two lateral or side-frames, each provided with a front bearing and a rear bearing, cross braces `connecting these` sideframes, tWo transverse axles mounted in said sideframes, and a suitable tongue SUP cured to the cross braces, together with pulverizing or mulshing disksmounted upon` the axles.

Instead, however, of mounting 4two gangs of rollers, all of which rollers have peripheries of V-shaped cross-section, I provide one gang of rollers, each member of which `has a periphery of V-shaped cross-section,

and the other gang with alternately occur'- ring sprocket-wheels and rollers having pe- -ripheries of V-shaped cross-section, as

shown in the drawings. 'These sprocketwheels are loose upon their shaft and the construction is preferably that shown in pending application of Ray E. Dunham and 'George E. Karl, Serial No. 850,005, filed July 9, 1914. Each sprocket wheel consists of a loosely turning wheel, the perimeter of y said wheel being provided with teeth or spikes, as shown in Fig. 5. There are as many ot these sprocket'whecls as there are of rollers 2, and as many of the latter as there are rollers 1, so that in the rear gang there are substantially twice as many soil disturbing units asin the first or forward gang, the axial dimension of one of the rollers 1 being equal to the added axial dimensions of a roller 2 and 3.

From the nature of the loose mounting of the sprocket whecls'it follows that each end of the rear gang should terminate ina roller 2,' in order to kecpthe rear gang stiff, hence it follows that the numerical relation of the two gangsrmay not necessarily be cX- actlv 2 to 1, in Figs..1 and 2 vthey stand 15 to 31.

In Fig. 1, I have shown the front gang provided with rollers 1, allot whichhave. their peripherics of V-shaped cross-section and the roar gang provided with alternately occurring rollers-2 andsprockct-wheels* 3,- the rollers 2 having a periphery similar that of rollers 1. y

equal to the width of 'one`of'the rollers?. 1,1 and the rollers 2 and 3 are so placedupon their common axis that the sproclaret-wheels` 3 .will be substantially in alinementwith the rollers 1, as clearly shown in Fig. 1.

The fmntgangof wheels therefore conl The Combine-i width af a roller 2 and a` sprocket-wheel 3 is ymade eiste of vvhat are'linown'as packerwheells and wliich`tend to pack the soil, as'vfell .as L crush' all of the.lar e lumpsy and Eo-formt*- parallel and well-dgened ridges. fliege-f ridgesfare crushed down by the real*` ack wheels which hit their centers and al '-1 jacent; loose sprocket-wheels stir thev surf face the ultimate compensatory eie'ctof, the vlatter operationbeing to form a" mulsl which prevents the evaporation of moisture. The'above-'described operation produces a comparatively'smooth surface in which: the.u

Y vridges are comparatively iii-defined.

brokenup first 'by the front gang of Wheels gangan'd the sprocket Wheels disturb and :In some locations, however, and particularly such as are subject tothe'operation of high winds, it'is desirable.to produce deeper ridges o'reorrugat'ions that wfould b'e'rprf duced by the arrangement of partspre 'ously described. y ja Where these deeper corrugations or ridges are desired;l the location of the front and' rear gangs is reversed, the alternat" cu'rrng packerv and' sprocket-Wheels@ placed in front, as shown in Fig. 2, ami-the gang consisting entirely of packer -vlxele being placed in 'the' rear. 'The gang-yimgsistin'gcompletely of packer wheels.,g "ef "3 now in' the( rear, the resultant surfacwlfxili' be -form'ed into well-defined and deep and'corrugations.Iv These ridges are prefer? vably formed at right angles to the direction in -which' the prevailing winds blow. In4 this'last event, however; the soil is lWell before these deep ridgesnre formed. u l Having fully described my inventiom'what I claim and desire to secure by'LettersPa;

bination .of avsuitable frame; a geinig of wheels mounted upon said frame en eh ofy Vcross-sectiorl'and -sprocket.

which wheels has a-.periphery Vfshaped in, cross-section; and a gang of wheels. also.; mounted upon said frame consisting' of, Vwheels havingr aperiphery V-sliaped in cross?. section and sprocket wheels', vsuch lattefz"VTV Wheels beingA 'alternately placed upon gnomi?. mon axis `there being` in the second-gang substantially as 'ma'ny of eachA kind ofwheels 'as there areV-sliaped Wheels 'in the .first gengf T2; In aisoil packer and inl'ilsher, the com bin'atiou of a suitable frame; a gang of .Wheels mounted upon said frame. each of which wheels/basa periphery V-shaped in @ross-section; and a. gang of wheels also. mounted upon said frame consistingv of vvfheelsfllaving fa peripher V-shnpqlinwlieels, such-' latvter"Wheelsbeing alternately laced 0h a common axis,` ythe V'Said sprociet wh'v 'b/ef ing alined with the wheels of the other gang respectively, there being in the second gang substantially las many of each' kind of wheels. asthere .are V-shaped wheels 'in the f In'l soil packer and mulsher, the combjn'ation of a suitable frame; a; gang of Whel'smounted. upon said frame, each of whichv Wheels-has a periphery Vshaped in cross-Section; and a gang of wheels mounted in the rear' of said first-named, gang on said frame consisting of Wheels having a periph-- ery V -shaped in cross-section and sprocketwheels, such lutter wheels being alternately placed upon a common axis, there being nA the'second gan substantially'as many of each kind of weels as there are Vfshaped wheels in the-first gang. y

21. In a soil packer and' mulsher,l `the com binatio'n of a suitable `frame; a gang of wheels' mounted uponv said, frame, each of which Wheels has a periphery V-shapecl in cross-sectifong and a gang of wheels mounted inthe reali of said'first-named gang on lsaid `frame c sting of Wheels havinga periphery V-shaed in cross-section, and sproket- .WheelSr-ssiph latter Wheels being alternately placed jupon aA common axis, the: lsaid sprocket-,Wheels being alinedfwiththe' wheels of the otfher'gang and the -V-shaped `wheels of the secondgang being arranged. to follow the depressions betweenn the wheels of the.

forward gang, whereby the second gang is made to reshape the ridges-left by the. first mulsh the' ridges made by the V- shaped wheels off-the second gang.

5. In al' soil acker and mulsher, in combination, atsmtable, frame, a. gang of soil disturbing, elements mounted upon said frame, aI/Aid'asecond gang of-.soil disturbing the elemnlitof the Vfirst gaghalf of them being `iiQTieraet'ei' like the-elements of the first gang, and approximatelyhalf being of 'astrubtulefadapted to producea soil'dismately the same;

Signed by me, this 15th-day of June, 1915. 

